Articles by Author: Anthonyj Booth

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  1. A histological description of ovarian recrudescence in two <em>Labeo victorianus</em> populations

    A histological description of ovarian recrudescence in two <em>Labeo victorianus</em> populations

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The ovaries of Labeo victorianus are paired organs situated in the peritoneal cavity and suspended on either side of the midline by a mesovarium. A capsule, composed of dense, regularly-arranged collagen and elastic fibres mixed with a few smooth muscle...
  2. Growth, reproduction and population structure of <em>Diplotaxodon limnothrissa</em> in the southeast arm of Lake Malawi

    Growth, reproduction and population structure of <em>Diplotaxodon limnothrissa</em> in the southeast arm of Lake Malawi

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Diplotaxodon limnothrissa is a widely distributed species occurring throughout Lake Malawi from the surface to a depth of at least 220m. It is probably the most abundant cichlid in the lake, with biomass estimates of around 87 000t in the...
  3. Management advice for the <em>Diplotaxodon limnothrissa</em> (Teleostei: Cichlidae) resource in the south-east arm of Lake Malawi, based on per-recruit analysis

    Management advice for the <em>Diplotaxodon limnothrissa</em> (Teleostei: Cichlidae) resource in the south-east arm of Lake Malawi, based on per-recruit analysis

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Diplotaxodon limnothrissa is a widely distributed species occurring throughout Lake Malawi and is probably the most abundant cichlid in the pelagic zone of the lake. The species is exploited commercially in the south-east arm of the lake, but since the...
  4. Reproductive biology of a riverine cyprinid, <em>Labeo umbratus</em> (Teleostei: Cyprinidae), in small South African reservoirs

    Reproductive biology of a riverine cyprinid, <em>Labeo umbratus</em> (Teleostei: Cyprinidae), in small South African reservoirs

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The reproductive and recruitment characteristics of moggel, Labeo umbratus, populations were examined in four small South African reservoirs. Reproduction, characterised by an extended spawning season, high fecundity, short incubation time and rapid larval development, appears to be ideally suited to...
  5. The life history and fishery potential of <em>Labeo umbratus</em> (Teleostei: Cyprinidae) in five small South African reservoirs

    The life history and fishery potential of <em>Labeo umbratus</em> (Teleostei: Cyprinidae) in five small South African reservoirs

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The life histories of five populations of moggel, Labeo umbratus, inhabiting small Eastern Cape reservoirs were compared and the differences related to environmental parameters. A significant positive correlation between fish growth and chlorophyll a was noted in four cases. In...
  6. A BROWN-McCOY RADICAL FOR T-RINGS

    A BROWN-McCOY RADICAL FOR T-RINGS

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    A notion of G-regularity is introduced for a Γ-ring M, and from this notion a Brown-McCoy radical, B(M) is defined. B(M) is shown to be a radical in the sense of Kurosh and Amitsur, and analogies of various well-known results...
  7. Biology of the redspotted tonguesole <em>Cynoglossus zanzibarensis</em> (Pleuronectiformes: Cynoglossidae) on the Agulhas Bank, South Africa

    Biology of the redspotted tonguesole <em>Cynoglossus zanzibarensis</em> (Pleuronectiformes: Cynoglossidae) on the Agulhas Bank, South Africa

    Item type: Journal Article • Journal: South African Journal of Marine Science
    The biology of the redspotted tonguesole Cynoglossus zanzibarensis, a common African cynoglossid inhabiting the Agulhas Bank, South Africa, is described. Growth studies based on sectioned sagittal otoliths revealed that C. zanzibarensis is relatively fast-growing and long-lived, attaining ages >8 years...
  8. Assessment of the monkfish <em>Lophius vomerinus</em> resource off Namibia

    Assessment of the monkfish <em>Lophius vomerinus</em> resource off Namibia

    Item type: Journal Article • Journal: South African Journal of Marine Science
    The Lophius vomerinus component of the monkfish resource off Namibia was assessed by means of deterministic length- and age-based models. Steady state length cohort analyses illustrated that, although the model was sensitive to the rate of natural mortality, it was...
  9. Quantifying commercial catch and effort of monkfish <em>Lophius vomerinus</em> and <em>L. vaillanti</em> off Namibia

    Quantifying commercial catch and effort of monkfish <em>Lophius vomerinus</em> and <em>L. vaillanti</em> off Namibia

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Abundance and exploitation patterns of monkfish Lophius vomerinus and L. vaillanti were investigated for use as inputs into a stock assessment framework to be used for management of the Namibian monkfish resource. Total numbers of monkfish caught per size-class were...